Connecting device for well-pum ping rigs



(No Model.)

C. 0. STOVER.

GONNEGTING DEVICE FOR WELL PUMPING'RIGS Patented Q01:

Nv PETERS. FhoEB-Ulhngnphor. wnniugtw. RC.

UNITED STATES PATENT FFICE.

GOOHRAN O. STOVER, OF BRADFORD, ASSIGNOR OF ONE-HALF T0 JOHN J. B. FINK, OF PITTSBURG, PENNSYLVANIA.

CONNEGTING DEVICE FOR WELL-PUMPING RIGS.

SPECIFICATION forming part of Letters Patent No. 412,136, dated October 1, 1889.

Application filed J 1111s 14, 1888. $eria1 No. 277,047. (No model.)

To aZZ whom it may concern:

Be it known that I, COOHRAN G. Srovnn, a citizen of the United States, residing at Bradford, in the county of McKean and State of Pennsylvania, have invented certain new and useful Improvements in Connecting Devices for W'ell-lumping Rigs, of which the following is a specification.

My invention has for its object the constructing of a strong and effective device whereto the rods or arms of other wells may be connected for operation by a single motor.

My invention consists in features of novelty, to be hereinafter described, and then particularly pointed out in the claim; and in order to gain a clear understanding. thereof reference may be had to the accompanying drawings, in which- Figure I is a perspective view of a complete rig embodying my invention. Fig.1l is a perspective view of the upright bar fastened to the derrick-sill and on which the hollow shaft carrying the bell-crank lever is journaled.

I will first describe briefly the well-known parts of a well-pumping rig in order to gain a clear understanding of my improvements, and I will then describe the latter.

Referring to the d rawings, 1 represents the derrick, and 2 its sill or platform.

3 represents a crank,which may be operated by any suitable device, as a band-wheel or Windlass, and which is provided with pins or bolts 4 for shortening the length of stroke of pitman 5, from either of which pins it may be operated when they occupy its slot 6.

7 is the rocking beam, which is pivoted to the brackets S of uprights or standards 9. EX- tending downwardly from the rocking beam is its pendulum 10, to which is connected the pitman Beam 11 13 is fixed to the rocking beam 7 for the operation of the polish-rod 12, which is attached to it.

I will now describe my present improvements.

16 is a connecting rod between the lower end of the pendulum and one arm 18 of the large bell-crank 17, of which 19 is the other arm. These arms are braced by means of a connecting-piece 20.

The bell-crank is mounted as follows: 21

is an upright rod fixed to the platform 2 of the derrick, and journaled thereon is a hollow oscillating shaft or tube 22. At the upper end of this hollow shaft is fixed a clampingbracket 23, having a perforated base-plate 24, to which is fixed by bolts or rivets the anglebrace 25 of the bell-crank 1'7. 1 call this an angle-brace for the reason that it is attached at the angle formed by the meeting ends of the arms of the bell-crank.

26 is a casting fixed to thelowerend of tube 22, and which is perforated for the insertion of the braces 27, which are bolted to the arms 18 and 19 of the bell-crank.

28 is a brace fixed to thebull-wheel posts 29, to which brace is fastened the upper end of the upright rod or bar 21. The rod 21 is also braced by a brace 30, secured to its upper end and to the platform of the derrick.

31 are any number of connecting-rods secured to the bell-crank for operating any number of wells from a single motor.

This rig is used in each and every derrick, which gives so much greater power than in other connected wells.

I am aware that it is old to construct a solid oscillating shaft for connecting up a number of wells, with radial arms wherewith the connecting-rods of the respective wells are connected; but I am not aware that previous to my invention it has ever been proposed to provide a rigid vertical rod on which journals a hollow oscillating shaft or a tube having radial arms, whereby the strain is distributed throughout the said hollow shaft for the purpose stated.

Having thus described my invention, what I claim is- Y The combination of the hollow oscillating shaft 22, fixed upright rod or bar 21, on which it is journaled, bell-crank 17, fixed by means of clamping-bracket 23 to the hollow shaft, perforated castings 26, braces 27, fixed in the perforations and secured to the bell-crank, and connecting-rods 31 of any number of wells, substantially as shown and described.

' OOOHRAN C. STOVER.

\Vitnesses:

J. M. ConBErr, J. S. BnRLow. 

